8V-71 turbo
 

8V-71 turbo

Started by jaybe_2, October 13, 2006, 02:22:20 PM

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jaybe_2

Any one know if it is worth adding an intercooler to an 8V-71 turbo? Looks like I might be doing a swap in a 1985 Prevost and was wondering if I should add one.

TomC

I am in the process as we speak having my 8V-71N turboed by Don Fairchild in Bakersfield.  I had a custom air to air intercooler made that would flow 1400cfm with 4" pipes.  If your engine is a TA then the air is cooled down to around 250 degrees by the aftercooler under the blower.  If you don't have the aftercooler, then the 350 degrees or so of turbo air is going directly into the engine.  As compared to an air to air intercooler that will drop the air to around 150 degrees on a 70 degree day.  Cooler the air, the more dense it is, making for better combustion-hence better horsepower and fuel mileage.  Good Luck, TomC
Tom & Donna Christman. 1985 Kenworth 40ft Super C with garage. '77 AMGeneral 10240B; 8V-71TATAIC V730.

jaybe_2

I will have to look and see if it is after cooled. If it is, does this have to be removed if an air to air cooler is installed?

ChuckMC8

Jaybe, the current thought is to remove the aftercoler and install an air to air intercooler. The intercooler needs to be 4" in and out. I have some research that I can share if you click on my profile an email me. HTH- Chuck
Far better is it to dare mighty things,to win glorious triumphs,even though they may be checkered by failure, than to rank with those poor spirits who neither enjoy nor suffer much,because they live in the gray twilight that knows neither victory nor defeat.  Theodore Roosevelt (1858-1919)